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Dror
Associate III
December 1, 2019
Question

Bring up of new platform using TeseoIII

  • December 1, 2019
  • 1 reply
  • 696 views

I am trying to bringup a new platform with TeseoIII.

I manage to flash the firmware, erase etc. However, when using Teseo-Suite, i can see 1-2-3 satellites recognized and a short few seconds after being visible on the Signal level window, they disappear.

Are you familiar with this behavior? What could be the cause?

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    1 reply

    Dror
    DrorAuthor
    Associate III
    December 1, 2019

    Found root-cause.

    A small 0201 size ferrite-bead was used in series to VINL1 power input. This caused a drop in 1.8V supply when GNSS engine started to work towards a fix, this probably caused the internal engine to reset.

    Replaced the bead with 0 ohm. Issue resolved.

    Technical Moderator
    December 2, 2019

    Perfect.

    Less work for me ;)

    For any question feel free to ask.

    If you can could you share some info on your TeseoIII project (you can write me directly francesco.virlinzi@st.com)

    Thansk

    Regards

    Francesco